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You are here: Home > Pistons > Probe Forged Pistons > SRS - Sportsman Race Series > Chevrolet > Chevrolet - LS Series > Dome Top
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LS Series LS7 LT1


Dome top pistons in a Chevrolet LS Series engine will generally provide compression ratios in the 13.0:1 range which makes them a good option for racing engines, either naturally aspirated or with nitrous oxide, aluminum heads and larger than stock camshafts.

Please select your piston from the list below, or select from the categories listed above.




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Probe Forged Pistons
Probe SRS Series Forged Pistons_Chevrolet LS_Dome_1.050 C/H_4.065 Base Bore_9.5cc_.927 Pin_15° Head

P/N: 8133-3-15041
  • V/R for 15° OEM Head
  • 1.050 Compression Height
  • 4.125 Stroke
  • 6.125 Rod Length
  • .927 Wrist Pin Diameter
  • 1.5 1.5 3.0 Ring Grooves
  • Nitrous - 250 H/P
  • Forced Induction - 12 lbs
Available Bore Sizes: 4.065, 4.070, 4.075, 4.080
Price includes pistons, pins, locks and oil rail spacers (as required)
more info
Probe Forged Pistons
Probe SRS Series Forged Pistons_Chevrolet LS_Dome_1.110 C/H_4.000 Base Bore_10.0cc_.927 Pin_15° Head

P/N: 8132-3-15045
  • V/R for 15° OEM Head
  • 1.110 Compression Height
  • 4.000 Stroke
  • 6.125 Rod Length
  • .927 Wrist Pin Diameter
  • 1.5 1.5 3.0 Ring Grooves
  • Nitrous - 250 H/P
  • Forced Induction - 12 lbs
Available Bore Sizes: 4.005, 4.030, 4.040, 4.125
Price includes pistons, pins, locks and oil rail spacers (as required)
more info
Probe Forged Pistons
Probe SRS Series Forged Pistons_Chevrolet LS_Dome_1.110 C/H_4.065 Base Bore_11.8cc_.927 Pin_15° Head

P/N: 8133-3-15042
  • V/R for 15° OEM Head
  • 1.110 Compression Height
  • 4.000 Stroke
  • 6.125 Rod Length
  • .927 Wrist Pin Diameter
  • 1.5 1.5 3.0 Ring Grooves
  • Nitrous - 250 H/P
  • Forced Induction - 12 lbs
Available Bore Sizes: 4.065, 4.070, 4.075, 4.080
Price includes pistons, pins, locks and oil rail spacers (as required)
more info
Probe Forged Pistons
Probe SRS Series Forged Pistons_Chevrolet LS7_Dome_1.055 C/H_4.125 Base Bore_5.5cc_.927 Pin_12° LS7 Head

P/N: 8134-3-25063
  • V/R for 12° LS7 OEM Head
  • 1.055 Compression Height
  • 4.125 Stroke
  • 6.125 Rod Length
  • .927 Wrist Pin Diameter
  • 1.5 1.5 3.0 Ring Grooves
  • Nitrous - 250 H/P
  • Forced Induction - 12 lbs
Available Bore Sizes: 4.125, 4.130, 4.135, 4.155
Price includes pistons, pins, locks and oil rail spacers (as required)
more info
Probe Forged Pistons
Probe SRS Series Forged Pistons_Chevrolet LS7_Dome_1.110 C/H_4.125 Base Bore_5.5cc_.927 Pin_12° LS7 Head

P/N: 8134-3-25062
  • V/R for 12° LS7 OEM Head
  • 1.110 Compression Height
  • 4.000 Stroke
  • 6.125 Rod Length
  • .927 Wrist Pin Diameter
  • 1.5 1.5 3.0 Ring Grooves
  • Nitrous - 250 H/P
  • Forced Induction - 12 lbs
Available Bore Sizes: 4.125, 4.130, 4.135, 4.155
Price includes pistons, pins, locks and oil rail spacers (as required)
more info
Probe Forged Pistons
Probe SRS Series Forged Pistons_Chevrolet LT1_Dome_1.300 C/H_4.065 Base Bore_0.6cc_.927 Pin_(14_16) LT1_15° Head

P/N: 8135-3-35069
  • V/R for Gen III LT1 15° Head
  • 1.300 Compression Height
  • 3.622 Stroke
  • 6.125 Rod Length
  • .927 Wrist Pin Diameter
  • 1.5 1.5 3.0 Ring Grooves
  • Nitrous - 250 H/P
  • Forced Induction - 12 lbs
Available Bore Sizes: 4.065, 4.070
Price includes pistons, pins, locks and oil rail spacers (as required)
more info